What figurative language is used in The Hunger Games?

Suzanne Collins uses plenty of figurative language in her famous young adult novel The Hunger Games. Let's take a look at three of the most common types of figurative language: simile, metaphor, and personification.
A simile is a type of figurative language that uses the words "like" or "as" to compare two things that are alike. Here's an example of a simile from the very first page of the book:

"Prim’s face is as fresh as a raindrop, as lovely as the primrose for which she was named."

This simile, which compares the character Primrose Everdeen to both a raindrop and a flower, conveys the idea that Prim is very beautiful, as well as being young and innocent. Here's another example of a simile:

"But today, despite the bright banners hanging on the buildings, there's an air of grimness. The camera crews, perched like buzzards on rooftops, only add to the effect."

This simile here is used to show how unsafe Katniss feels during the reaping, like a vulnerable animal being watched by buzzards.
Metaphors, another type of figurative language, directly compare two things without the use of "like" or "as."

"Career tributes are overly vicious, arrogant, better fed, but only because they’re the Capitol’s lapdogs."

Collins is not literally saying that these people are lapdogs; this passage suggests they are given preferential treatment by those in the Capitol just as a beloved lapdog would be given preferential treatment by a human owner.
Yet another type of figurative language is personification, which gives human characteristics to something that is not human.

"The woods became our savior, and each day I went a bit farther into its arms."

Here Collins personifies the woods, figuratively giving them arms to be held in, conveying that this is a place where Katniss feels safer.